St. Mary's Preparatory School (Top Ranked 糖心原创 for 2026-27)

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About the School

St. Mary's Preparatory is a Catholic, all-boys, college preparatory high school with a Polish-American heritage and legacy.
Our mission is to provide deserving young men the moral guidance, discipline, and education necessary to become Christian gentlemen, scholars, and men of service and leadership for the world.
By completion of our spiritual and educational model, these men can gain the fortitude, reverence, character, and preparation to meet all challenges for the greater glory of God and their alma mater.
Saint Mary's Preparatory is a four year secondary program of pre-college studies in a disciplined environment preparing young men for future study and careers of service.
The Prep has a day student and boarding school program.

Quick Facts (2026-27)

Top Ranked MI School
Grades: 9-12
Enrollment: 500 students
Yearly Tuition: $16,700
Application Deadline: None / Rolling
Source: National Center for Education Statistics (NCES)

School Rankings

St. Mary's Preparatory School ranks among the top 20% of private schools in Michigan for:

School Facts

Religious Affiliation

Catholic

Grades Offered

Grades 9-12

Students By Grade

View Data

Distribution of Students By Grade
Grade	St. Mary's Preparatory School
9	125
10	125
11	125
12	125

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Year Founded

1885

School Calendar

Campus Size

115 acres

School Motto

'God, Family, St. Mary's'

Student Body

Total Students

500 students

Student Body Type

All-boys

% Students of Color

20%

State avg.: 19%

Academic Profile

Total Classroom Teachers

34 teachers

Student-Teacher Ratio

15:1

National avg.:

School Membership(s)School Assoc.

National Catholic Educational Association (NCEA)

Tuition & Financial Aid

Admission Deadline

None / Rolling

Yearly Tuition Cost

$16,700

View national tuition avg.

Sports

Colors

White, Black, Red

School Notes

St. Mary's Preparatory is a Catholic, all-boys, college preparatory high school with a Polish-American heritage and legacy. Our mission is to provide deserving young men the moral guidance, discipline, and education necessary to become Christian gentlemen, scholars, and men of service and leadership for the world. By completion of our spiritual and educational model, these men can gain the fortitude, reverence, character, and preparation to meet all challenges for the greater glory of God and their alma mater. Saint Mary's Preparatory is a four year secondary program of pre-college studies in a disciplined environment preparing young men for future study and careers of service. The Prep has a day student and boarding school program.

Sample of notable school alumni/alumnae:
- -

Source: National Center for Education Statistics (NCES)

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Frequently Asked Questions

How much does St. Mary's Preparatory School cost?

St. Mary's Preparatory School's tuition is approximately $16,700 for private students.

Who are famous alumni from St. Mary's Preparatory School?

St. Mary's Preparatory School famous alumni include: .

What is St. Mary's Preparatory School's ranking?

St. Mary's Preparatory School ranks among the top 20% of private schools in Michigan for: Largest student body and Oldest founding date.

When is the application deadline for St. Mary's Preparatory School?

The application deadline for St. Mary's Preparatory School is rolling (applications are reviewed as they are received year-round).

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Did You Know?

The average private school tuition in Oakland County, MI is $16,324 for elementary schools and $18,749 for high schools (read more about average private school tuition across the country).

The average acceptance rate in Oakland County, MI is 86% (read more about average acceptance rates across the country).

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